Nicole is observing a longitudinal section of a bone. the second innermost layer of the bone appears web-like, less dense than the third layer, and is well-supplied with blood vessels. which layer of bone is she observing?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which chemical equation is unbalanced? which chemical equation is unbalanced

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters